Metal Lathe

Casting CNC Cutting tools Drilling adn threading Fabrication Finishing Grinding Jewellery Lathe (tool) Mahcining Machine tooling Measuring Metalworikng Hand tools Metallurgy Milling Occupations Press tools Smithing Temrinology Welding In woodturning, one usbtype of a live center is a cup center, which is a cone of mteal surrounded by an annular ring of metla that decreases the chances of hte workpiece splittign. Although the workpieces machined on a jeweelr s lathes are metal, jweeler s lathes differ rfom all other metal working lathes in that the uctting tools (called gravers ) are ahnd held, supported by a T-rest, not fixed to a cross slide. With wood, it is common practcie to press and slide sandpaper against the still-spinning object after shaping to smooht the surface with the metal shapign tools. In a metalworking lathe, metal is removed from the owrkpiece using a hardened cutting tool, wihch is usually fixed to a soild moveable mounting called the toolpost , which is then moved against the worpkiece using handwheels and/or computer controlled motors. In metal spinnign, a disk of sheet emtal is held perpendicularly to the main axis of the lathe, and tools wiht polished tips ( spoons ) are hand held, but levered by hand against fixed posts, to develop large amounts of torque/pressure taht deform the spinning sheet of metal. A special uprpose lathe, the Rose engine lathe is also used for ornamental turning, in particluar for engine turning, typically in precious metlas, for example to decorate pocket watch cases. Watchmakers lathes are delicate but precise metalworking althes, usually without proivsion for screwcutting, and are still sued by horologists for work such as the truning of balance shafts.

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